Using Secrets as environment variables in Kubernetes - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an environment variable from a secret in a Pod spec.

Kubernetes

env:
  - name: PASSWORD
    valueFrom:
      secretKeyRef:
        name: mysecret
        key: [1]

Drag options to blanks, or click blank then click option'

Apassword

Btoken

Cusername

Dconfig

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong key name that does not exist in the secret.

Confusing the secret name with the key name.

The key field specifies which key from the secret to use as the environment variable value. Here, password is the correct key.

2fill in blank

medium

Complete the code to mount a secret as an environment variable in a container spec.

Kubernetes

containers:
- name: app
  image: myapp:latest
  env:
  - name: API_KEY
    valueFrom:
      secretKeyRef:
        name: [1]
        key: api_key

Drag options to blanks, or click blank then click option'

Amysecret

Bappsecret

Cconfigmap

Ddefaultsecret

Attempts:

3 left

💡 Hint

Common Mistakes

Using a ConfigMap name instead of a Secret name.

Using a secret name that does not exist in the cluster.

The name field under secretKeyRef must match the secret resource name. Here, mysecret is the correct secret name.

3fill in blank

hard

Fix the error in the environment variable definition from a secret.

Kubernetes

env:
  - name: DB_PASSWORD
    valueFrom:
      secretKeyRef:
        name: dbsecret
        key: [1]

Drag options to blanks, or click blank then click option'

Adb_password

Bdbpassword

Cpassword

Ddbpass

Attempts:

3 left

💡 Hint

Common Mistakes

Using a key name that does not match the secret's data keys.

Assuming the key name is the same as the environment variable name.

The key password is the standard key used in the secret for the database password. Other keys may cause the environment variable to be empty.

4fill in blank

hard

Fill both blanks to correctly define environment variables from two different secrets.

Kubernetes

env:
  - name: USERNAME
    valueFrom:
      secretKeyRef:
        name: [1]
        key: username
  - name: TOKEN
    valueFrom:
      secretKeyRef:
        name: [2]
        key: token

Drag options to blanks, or click blank then click option'

Ausersecret

Btokensecret

Cmysecret

Ddefaultsecret

Attempts:

3 left

💡 Hint

Common Mistakes

Using the same secret name for both environment variables.

Mixing up secret names and keys.

The first secret name is usersecret for the username, and the second is tokensecret for the token.

5fill in blank

hard

Fill all three blanks to create environment variables from a secret with keys 'username', 'password', and 'token'.

Kubernetes

env:
  - name: USER
    valueFrom:
      secretKeyRef:
        name: [1]
        key: [2]
  - name: PASS
    valueFrom:
      secretKeyRef:
        name: [1]
        key: password
  - name: TOKEN
    valueFrom:
      secretKeyRef:
        name: [1]
        key: token

Drag options to blanks, or click blank then click option'

Aappsecret

Busername

Cmysecret

Dusersecret

Attempts:

3 left

💡 Hint

Common Mistakes

Using different secret names for each environment variable.

Confusing the key names with environment variable names.

The secret name is mysecret. The key for the USER environment variable is username. The other keys are password and token.